Estudio y simulación de una red óptica metropolitana operante a 1.6 Tb

Abstract

The present degree project has as one of its objectives to carry out a study of the metropolitan optical network to review the feasibility of implementing short-range metropolitan networks, taking advantage of the fact that the distance between data centers is less and less, and at the same time achieve higher performance that demand increasingly high rates of information speeds. The metropolitan optical networks currently operate at 400 Gb/s and work is being done on the version of the 800 Gb/s networks, each time increasing the connection densities at the hyper-scale level, to study the feasibility of using transmission systems. High-speed optics, non-coherent data transmission techniques are used to connect data centers, increasing bandwidth, and supporting new generation applications. For the simulation of the systems, comparison and performance of the PAM 4 and PAM 8 modulations, the simulation software for optical fiber transmission systems Optsim was used. The software allows simulations of communication systems, evaluating the performance of a transmission system, presenting us with signal wave diagrams, bit error rate (BER), received optical power, eye diagrams, dispersion, and power maps. The software has communication through an interface with MATLAB, this allows and provides the development of customized co-simulation models. The results obtained show that speeds of 1.6 TB/s can be obtained with very little BER penalty compared to speeds of 400 and 800 Gb/s, if transmitted over distances of up to 20km, which are typically the longest distances of transmission required interconnection between data centers